Moodle 2.0.10 Calendar not remembering previously entered event names

When entering the first few letters of a Calendar event name in my school’s Moodle 1.9 site, a pop-up list of previously entered Event Names would appear and could be selected. This made for quick and efficient entering of frequently used event names.

This is no longer happening after upgrading from Moodle 1.9 to 2.0 (specifically Moodle 2.0.10 (Build: 20120706). I would greatly appreciate any advice on how to get this functionality back as it was a useful timesaver.